Complete hair removal of a specific area is achieved through multiple sessions, which vary depending on hair type and the area of the body being treated. It is not possible, with any type of laser technology (and even less so with earlier techniques), to determine in advance the exact number of sessions, treatment duration, or the precise quality of the final result. Based on statistical data, it has been established that at least 12 sessions are required, scheduled monthly for the initial treatments, after which the final sessions are spaced at longer intervals, always within a total timeframe of 18 months. Hair growth in the human body follows endocrine dynamics, meaning it is linked to each individual’s personal hormone production. In every individual, it is not possible to control these dynamics from an aesthetic standpoint. The results achievable with this treatment are not definitive but long-lasting over time. Laser LED hair removal should therefore be considered a “permanent progressive hair removal procedure” or a “permanent hair growth delay” (FDA definition). After the first treatment, an average hair reduction of 20–40% can be expected, increasing to an estimated growth delay of around 80% after 5–6 treatments. The optimal interval between treatments is two weeks for facial areas during the initial sessions, gradually extending to four weeks in the final sessions. For body treatments, the recommended interval is 28–30 days during the early sessions, then progressively extended based on the results achieved. During the course of the treatments, hair density will decrease and regrowth will become increasingly slower. If the client requests shorter or longer intervals between sessions, it is important to clarify that a significant number of hairs may not be in the anagen phase, and therefore the results may not be equally effective.